I installed a FX8320 on my Motherboard and it seems like some components are getting too hot. Maybe the VRMs, but the heatsink on the northbridge is hot enough to cook an egg on it too. It seems like these temps are trhottling my CPU from 3.6GHz to 1.4GHz. Coretemp of the CPU is 51° C, then the throttling kicks in till it cools down to 48° C - clock goes up and so does the temp till it hits 51° again. That repeats as long as there is load on the CPU. It causes FPS drops in games and GPU can't work either.. My motherboard: m5a78l le.
So 51° coretemp of the CPU shouldn't cause the heat-thrtolling, right?
Could undervolting help me to lower the temps? Can i disable heat-throttling just to test it out?
More about :amd fx8320 vrms northbridge hot undervoling
VRM thermal throttling will indeed be your problem, i had the same problem on an Asrock 970 Extreme4 board and that board even had a vrm heatsink.
Undervolting was my short term solution before i had enough and ended up buying a new board because i wanted to OC.
My 8320 at stock clocks (turbo disabled) ran at 1.125v which eliminated my throttling problems, just keep in mind my board did have a vrm heatsink so it might not work at all that great for you, i also run a Noctua NH-D14 cooler which provides some airflow over the vrm heatsink area.
I would avoid disabling any kind of throttling settings, they are there for a reason.
Thank you both guys, could you recommend a board to me which I can run my CPU on without these problems?
I will try undervolting to 1.125V till I have a new board here. Is it possible to get a decent board with max 100 €? I didn't plan spending more money this month on the PC. Just bought the R9 270X and FX8320 along a new Black Edition WD, so I don't have much money left for these kind of things.
Need help again: I can't change the vcore in my BIOS. When I navigate to CPU Configuration and select the setting it just displays the current VCore and "Ignored" as an option. I could change it some while ago, what happened here? Why the hell are there no options?